Charles even suggested ways that Google might be able to set things right.

Google should fall in line, says Verizon

Charles alleged in the letter that reports of Verizon "blocking" Google Wallet are "inaccurate," as Verizon doesn't prevent the app from being downloaded on its network.

"However, for the devices that Verizon distributes, markets and subsidizes, the Google Wallet may not work to the extent that it requires integration with the device's 'secure element,'" Charles wrote.

"Google Wallet is different from other widely-available m-commerce services in that it requires integration with this 'secure element,'" she continued.

"Google Wallet does not simply access the operating system and basic hardware of our phones, like thousands of other applications."

The letter goes on to rather smugly suggest that "Google is free to offer its Google Wallet application in a manner that doesn't require integration with the secure element," or, alternately, "launch devices on Verizon's network with Google Wallet included."